Quick answers
- Does William M. Ellis accept Medicare assignment?
- Yes. Medicare's clinician data says William M. Ellis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is William M. Ellis's NPI number?
- 1336132141. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William M. Ellis works
Medicare's Facility Affiliation Data lists William M. Ellis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Jackson-Madison County General HospitalJackson, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440002
Practice locations
Addresses where William M. Ellis is enrolled with Medicare (CMS data updated October 2, 2026).
- 367 Hospital BlvdJackson, TN 38305 (731) 661‑2000
- 620 Skyline DrJackson, TN 38301 (731) 541‑5000
Group practices
Medicare enrollment lists William M. Ellis as a member of this group (CMS data updated October 2, 2026).
- Medical Center Anesthesia, Inc111 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Jackson
Clinicians with the same Medicare primary specialty in Jackson, TN — not a recommendation.
Other clinicians in Medical Center Anesthesia, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | University Of Missouri, Kansas City, School Of Medicine |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336132141 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians